Re: [HACKERS] "Extension" versus "module"

On Mon, 2011-02-14 at 12:48 +0100, Dimitri Fontaine wrote:
> Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
> > Appendix F (contrib.sgml and its subsidiary files) is pretty consistent
> > about using "module" to refer to a contrib, uh, module.
>
> I'm now thinking in those terms: the module is the shared object library
> that the backend needs to dlopen(). The extension is the SQL level
> object that wraps all its components.

I would say that some modules are extensions, but not all. A standalone
executable might be part of a module, but would not be an extension.

Remember also that not all modules out there on the net will have been
updated either, so we must be able to discuss "extension-izing a
module". (??)

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